103 citations · 384 across the 7 of their papers we have counts for
7 papers
Spectroscopy of Seven Cataclysmic Variables with Periods Above Five Hours
John R. Thorstensen, William H. Fenton, Cynthia J. Taylor
We present spectroscopy of seven cataclysmic variable stars with orbital periods P(orb) greater than 5 hours, all but one of which are known to be dwarf novae. Using radial velocit…
Superhumps in Cataclysmic Binaries. XXIII. V442 Ophiuchi and RX J1643.7+3402
Joseph Patterson, William Fenton, John Thorstensen +15
We report the results of long observing campaigns on two novalike variables: V442 Ophiuchi and RX J1643.7+3402. These stars have high-excitation spectra, complex line profiles sign…
Five Dwarf Novae with Orbital Periods Below Two Hours
J. R. Thorstensen, W. H. Fenton
We give mean spectra and report orbital periods Porb based on radial velocities taken near minimum light for five dwarf novae, all of which prove to have Porb less than 2 hr. The s…
QZ Serpentis: A Dwarf Nova with a 2-Hour Orbital Period and an Anomalously Hot, Bright Secondary Star
J. R. Thorstensen, W. H. Fenton, J. O. Patterson +3
We present spectroscopy and time-series photometry of the dwarf nova QZ Ser. The spectrum shows a rich absorption line spectrum of type K4 +- 2. K-type secondary stars are generall…
1RXS J232953.9+062814: A Dwarf Nova with a 64-minute Orbital Period and a Conspicuous Secondary Star
John R. Thorstensen, William H. Fenton, Joseph O. Patterson +3
We present spectroscopy and time-series photometry of the newly discovered dwarf nova 1RXS J232953.9+062814. Photometry in superoutburst reveals a superhump with a period of 66.06(…
The cataclysmic variable CW 1045+525: a secondary-dominated dwarf nova?
C. Tappert, J. R. Thorstensen, W. H. Fenton +3
We present spectroscopic and photometric observations of the cataclysmic variable CW 1045+525. Both the optical spectrum and the photometric lightcurve show a strong contribution o…
Heavy Element Diffusion in Metal Poor Stars
Brian Chaboyer, W. H. Fenton, Jenica E. Nelan +2
Stellar evolution models which include the effect of helium and heavy element diffusion have been calculated for initial iron abundances of [Fe/H] = -2.3, -2.1, -1.9 and -1.7. Thes…